chore(deps): update dependency custom_lint to v0.8.1

Author: renovate[bot]

pubspec.yaml

@@ -60,7 +60,7 @@ dev_dependencies:
   auto_route_generator: ^10.0.1
   build_runner: ^2.4.15
   build_web_compilers: ^4.1.5
-  custom_lint: ^0.7.5
+  custom_lint: 0.8.1
   dhttpd: ^4.1.0
   envied_generator: ^1.1.1
   flutter_gen_runner: ^5.10.0